Loom stop mechanism



July 5, 1932. v DEMERS I Q 1,865,620

- LOOM STOP MECHANISM Filed Jan. '31. 1930 zmb w I N VE.N+I3 R:

Maw KW Patented July 5, 1932 HONORE DEMERS, OF MANCHESTER, NEW HAMPSHIRE LOOM STO? MECHANISM Application filed January 31, 1930. Serial No. 424,863.

This invention relates to looms and particularly to means for stopping aloom whenever a shuttle'is held in the shuttle-box at an improper time, said means operating to stop the loom on the rearward movement of the lay. The present invention is an improvement upon United'States Patent No. 1,694,411 for loom stop mechanism, granted to me on December 11, 1928. In the construction disclosed by said patent, the loom is stopped on the rearward movement of the lay and it is necessary, when a shuttle is to be removed from the shuttle box, to move the lay forward manually to release the pressure on the shuttle binder, such pressure having been caused by the action of the stopmechanism of the loom. This manual operation requires time and obviously slows up the operation 'of the loom.

One of the principal objects of my invention is to eliminate the necessity of manually moving the lay to release the shuttle, and to provide means operated by the loom stop mechanism for automatically releasing the pressure on the shuttle binder to permit the easy and quick removal of the shuttle from the shuttle box, and the insertion of another shuttle in the box. 7

The foregoing and other objects of the invention will appear from the following description and appended claims, when taken in connection with the accompanying drawing, in which:

Fig. 1 is a side elevation of a loom having the invention applied thereto and illustrating the cooperation of the parts to stop the loom.

Fig. 2 is an enlarged fragmentary side elevation of the mechanism embodying the invention, together with certain associated parts showing the relative positions they assume when the loom is stopped thereby.

Fig. 3 is a top plan view thereof showing the parts about to cooperate to stop the loom.

Fig. 4 is a View similar to F ig. 2 showing the relative positions of the parts when the.

loom is in normal operation.

Before explaining in detail the present invention, it is to be understood that the invention is not limited in its application to the a warp thread breaks,

details of construction and arrangement of parts illustrated in the accompanying drawing, since the invention is capable of other embodiments and of being practiced or carried out invarious ways. Also it is to be 56 understood that the phraseology or terminology employed herein is for the purpose of descrlption and not of limitation, and it is not intended to limit the invention beyond the terms of the several claims hereto appended to as considered in view of the prior art and the requirements thereof.

Referring to the drawing, and particularly to Fig. 1 thereof, the usual loom side is shown at 10, the lay at 11, the shuttle box at 65 12, a shuttle at 13, and harness mechanism'at 14. At 15 is shown drop wire mechanism which acts through a shipper rod 160, lever 161, and a link 162, upon knock-off devices, generally indicated at 170, to actuate the 70 usual shipper lever 180 to stop the loom when the shipper rod moving forwardly for this purpose. The shipper lever 180is illustrative of means for stopping the loom and the usual'clutoh and clutch connections are omitted, for simplicity of illustration as these parts are well known and re quire no description. The shuttle box 12 carries the usual binder 19 which is pressed into engagement with the shuttle by a binder 30 finger 20 mounted on the usual protector rod or shaft 21 extendinglongitudinally of the lay and pivotally mounted in suitable bearings on the latter Cooperating with and i preferably surrounding the protector-shaft 35 21, is the usual spring 22 (see Fig. 3) which acts to hold the binder finger in engagement with the binder, and to press the latter against the shuttle. The parts above referred to may all be of any approved construction, 90 and the other usualparts of the loom are omitted or requireno description as they are all well known in the art and form no part of the present invention. In accordance with the present invention, 96 the protector shaft 21 has mounted thereon a dog D which extends forwardly from said shaft and comprises two'parts, a body portion 30 which is secured to 'saidjshaft by a set screw 6, and an arm 31 which is pivotally 1W secured to the body portion by a pin 32. A bore is formed in each of the parts 30 and 31, in the proximate ends thereof to receive and house a coiled spring 33 which normally tends to separate said parts. The arm 31 is provided with a portion 34 extending rearwardly therefrom beneath the body portion 30 and beyond the pivot 32, which engages said body portion to limit the relative movement of these parts caused by the action of the spring 33. The arm 31 is also provided at its forward end with a hook 35 which is adapted to cooperate with a reversing lever 26 to operate the knock-off devices 170 to stop the loom It will thus be seen that the pivotal connection between the parts 30 and 31 permits the dog D to be flexed or bent and therefore said dog constitutes a flexible connection between the lay and the knock-off devices when said parts are cooperating to stop the loom.

When the loom is in normal ope-ration and the shuttle is out of the shuttle box, the parts of the dog D assume the positions in which they are shown in Fig. 4, with the spring 33 maintaining the proximate faces of the parts 30 and 31 out of contact, the dog D being held by the spring 22 in an elevated position so that, on the rearward movement of the lay,

said dog will pass above and not engage the reversing lever 26. When, however, the shuttle is improperly held in the shuttle box, as shown in Figs. 1 and 2, the binder 19 acts through the binder finger 20 and protector shaft 21, to depressthe dog, so that when the lay moves rearwardly from its extreme forward position, the hooked end 35 of said dog engages the reversing lever 26 and swings its lower end forward, thereby moving the shipper rod 160 forwardly and operating the knock-off devices to stop the loom. The dog D and the lever 26 are so relatively arranged that the reaction of the lever on the dog mem- .ber has substantially no component tending to press thebinder finger and binder against the shuttle, so that no strain, tending to injure the latter is imposed thereon. Thus the movement of the lever 26, when engaged by the dog D, has a downward component tending to rotate the shaft 21 in the direction to relieve the pressure of the binder on the shuttle. Further movement backwardly of the lay 11, with the hook 35 of the dog engaging the upper end of the reversing lever 26, causes relative swinging movement toward one another of the parts 30 and 31 about the pivot 32, compressing the spring 33 until the parts assume the position in which they are shown in Fig. 2. Thus the binder finger 20 is moved entirely out (f contact with the binder, whereby the shuttle may be removed very easily from the shuttle box, and a new one inserted.

From the foregoing it will be seen that I have provided automatic means controlled by the loom stop mechanism and positioned between the lay and the knock-off devices of said stop mechanism, which functions to release the pressure on the shuttle binder and to permit the removal of the shuttle and the insertion of another.

I claim:

1. In a loom, in combination, mechanism for stopping the loom, including a shipper lever, a drop wire mechanism, a shipper rod and a reversing lever connecting said shipper rod to said drop wire mechanism, a lay, a protector shaft carried by said lay, a shuttle box on the lay, a binder carried by said shuttle box, a binder finger engaging said binder, and a flexible member connected with the protector shaft adapted to be moved by the binder finger into engagement with said reversing lever to actuate the stopping mechanism to stop the loom and to withdraw the binder finger from contact with the binder to permit removal of the shuttle.

2. In a loom, in combination, mechanism for Stopping the loom, including a shipper lever, a drop wire mechanism, a shipper rod and a reversing lever connecting said shipper rod to said drop wire mechanism, a lay, a protector shaft carried by said lay, a shuttle box on the lay, a binder carried by said shuttle box, a binder finger engaging said binder, and a flexible member comprising an articulated dog having a body portion connected with the protector shaft and an arm provided with a hook at its forward end adapted to be moved by the binder finger into engagement with said reversing lever to actuate the stopping mechanism to stop the loom and to withdraw the binder finger from contact with the binder to permit removal of the shuttle.

In testimony whereof I aflix my signature.

HONOR-E DEMERS. 

